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Thank you for your detailed and precise request. I appreciate your trust in my capabilities. Let's break down the process of retrieving all files modified in the last 24 hours in a specified directory on a Unix-based system. Step-by-Step Guidance: 1. Open the Terminal: Open your terminal application on the Unix-based system. 2. Navigate to the Specified Directory: Use the cd command to navigate to the specified directory. Replace /path/to/your/directory with the actual path of your directory. cd /path/to/your/directory 3. Use the find Command: The find command is powerful for searching files. To find files modified in the last 24 hours, use the following syntax: find . -type f -mtime -1 .: Indicates the current directory. Change it if you are searching in a different directory. -type f: Specifies that you are looking for files, not directories. -mtime -1: Filters files modified in the last 24 hours. The number -1 means within the last 24 hours. You can adjust this value based on your needs. 4. Additional Options for Enhanced Results: To make the search more precise, you can use additional options with the find command: -name: Specify a filename pattern. -size: Filter files based on size. -exec: Execute a command on each found file. Example with additional options: find . -type f -name "*.txt" -size +1M -mtime -1 -exec ls -l {} \; This command finds files with the .txt extension, larger than 1 megabyte, modified in the last 24 hours, and executes the ls -l command on each. Explanation: The find command recursively searches for files in the specified directory and its subdirectories. -type f filters only regular files (not directories). -mtime -1 narrows down the search to files modified in the last 24 hours. Additional options can be used to customize the search based on your specific requirements. Alternative Approach using grep and ls: If you prefer a more concise approach using ls and grep, you can use the following command: ls -l --time=ctime | grep "$(date -d 'yesterday' '+%b %e')" This command lists files with their modification times, and grep filters out files modified within the last 24 hours. Parameterized Response: For a personalized response, replace /path/to/your/directory with your actual directory path. Here's an example: cd /your/unique/path find . -type f -mtime -1 Feel free to adjust the parameters based on your specific needs. I hope this comprehensive guide assists you in advancing your Unix file management skills. If you have any further questions or need clarification, please don't hesitate to ask!